Turner recently spoke with BTS and
friends, offering some clues on what fans can expect from tonight's episode.

"Well, seeing the finale script,
it was just truly - I don't know what more they could have put in this script,"
she said. "I mean everyone - every storyline gets blown out and exposed,
resolved, challenged, you know? And then just the level of production value in
this finale - I mean, it's like feature film-quality stuff that we did in terms
of effects and story and set (and) environment. I mean, it was all just, really,
at the top of our game, I felt. And it was - we were all kind of chomping at
the bit to start production on this last one."

This final fight is not the
typical wesen-of-the-week encounter. No, when this epic battle ends, one of our
heroes might not make it to season three.

"Someone's life is definitely in
balance, and it's very, very, very scary to be this person, I will say," Turner
said. "And I honestly don't know how we're going to resolve it in terms of
storyline. It's - I'm nervous and excited about how season three is going to
begin with this cliffhanger, because it's pretty major."

Undoubtedly, "Grimm" fans will
analyze the season finale, ponder different resolutions for the next season,
and exchange show tidbits throughout the summer. This is, after all, a sci-fi
series.

Turner said she appreciates the
uniqueness of this genre's admirers.

"Well, the support and love and
loyalty from these - the genre fans are like nothing I've ever experienced,"
she said. "I've only done a few other sort of jobs in this world and - but
nothing like this, I think, at the scale of 'Grimm.' And so I've been blown
away with how committed and supportive and protective our fans are over the
characters and the show. And it's just been really awesome."